Feasibility of Stereotactic Navigation in Laparoscopic Surgery for Colorectal Cancer (PELVINAV)

January 4, 2024 updated by: IHU Strasbourg

Prospective Study of the Feasibility of Stereotactic Navigation in Laparoscopic Surgery for Colorectal Cancer

To evaluate the feasibility and precision of stereotaxic navigation in laparoscopic surgery for colorectal cancer.

Study Overview

Status

Terminated

Conditions

Detailed Description

  • In minimally invasive surgery, the proper identification of the correct anatomical planes can be difficult due to a lack of tactile feedback and the inability to manually palpate the organ prior to resection. Although this can be minimized by careful preoperative planning, the information that can be obtained by images is also of limited utility. Conventional imaging, such as magnetic resonance imaging (MRI) and computed tomography (CT-scan), can provide a detailed view of 2D or 3D internal anatomical structures. However, during surgery, surgeons still have to use their subjective interpretation to translate this information into three-dimensional spatial relationships (ie the patient's actual volume). For this reason, in order to perform adequate resection and avoid injury, the surgeon must constantly infer what is the actual location of the anatomical structures and what is the position of the surgical instruments in relation thereto.
  • The proposed study aims to evaluate the feasibility of surgical navigation in patients with colorectal cancer (sigmoid rectum-right-left rectum) and measure its performance in the perspective of a more specific application to rectal cancer approached laparoscopically through the abdomen and / or the anus. The study is proposed to patients with cancer because the measurement of accuracy will be done on predefined anatomical points that will be detectable in the surgical field after oncologic dissection. Benign pathologies do not require this type of extensive dissection and the application of navigation would imply additional risks for patients.
  • Surgical navigation will be performed on the basis of preoperative images or intraoperative images.

Study Type

Interventional

Enrollment (Actual)

12

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Strasbourg, France, 67 091
        • Service de Chirurgie Digestive et Endocrinienne, NHC

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Patient is over 18 years old
  2. Patient presents with cancer
  3. Patient has no contraindication to anesthesia and surgical resection
  4. Patient able to receive and understand information about the study and give written informed consent
  5. Patient (s) affiliated to the national social security system.

Exclusion Criteria:

  1. Patient operated on urgently.
  2. Pregnant or lactating patient
  3. Patient in an exclusion period (determined by previous or current study).
  4. Patient under the protection of justice.
  5. Patient under guardianship or curatorship.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
No Intervention: PREOP
Navigation without intraoperative acquisition of images: Use of conventional preoperative images (CT-MRI) to establish intraoperative navigation.
Experimental: PEROP
Navigation with intraoperative acquisition of images: Intraoperative acquisition (robotic c-Arm) of images to establish intraoperative navigation.
Conventional laparoscopic colorectal oncologic resection is performed. During the procedure, the operator will identify previously defined anatomical landmarks, point them with an instrument tracked by the navigation system and the accuracy of the stereotactic navigation system will be calculated by comparing the "surgical" anatomical point and its correspondent on the images of the navigation platform.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Accuracy of Surgical stereotactic navigation defined as the distance, in millimetres, between the position of the surgical landmark and the position determined by the navigation system
Time Frame: up to 7 days post procedure
Measurement of "accuracy" of surgical navigation defined as the distance measured between the position of "surgical" previously defined anatomical landmarks, pointed with a surgical instrument tracked by the navigation system, and corresponding location of the instrument in the navigation image. A distance equal to or less than 4 mm between the two locations will be considered as an optimum accuracy.
up to 7 days post procedure

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Comparison, in millimeters, of the surgical navigation "accuracy" (as defined in the primary outcome) with or without intraoperative images acquisition
Time Frame: up to 7 days post procedure
Usefulness of intraoperative images acquisition for the registration process of the navigation system by comparing accuracy of surgical navigation (in mm) with or without intraoperative images acquisition
up to 7 days post procedure
Difference, in millimetres, between the alignment of the geometric position of the markers in the image space and the actual physical space for stereotaxic navigation
Time Frame: up to 7 days post procedure
Measurement of "registration error" during surgical navigation defined as the difference between the alignment of the geometric position of the markers in the image space and the actual physical space, with or without intraoperative images acquisition. An error of 2 mm during the recording process will be considered as the optimal parameter
up to 7 days post procedure
Measurement of the overall operating time (in minutes) with and without intraoperative images acquisition
Time Frame: up to 30 days post procedure
Evaluation of the impact of the introduction of surgical navigation on the operating time. The measurement of the overall operating time (expressed in minutes), associated with surgical navigation
up to 30 days post procedure
Measurement of the level of radiation exposure to ionizing factors with and without intraoperative images acquisition
Time Frame: up to 30 days post procedure
Evaluation of the impact of the introduction of surgical navigation on the exposure of the patient to ionizing radiation, measured with Dose Length Product (DLP) and expressed in mGy * cm
up to 30 days post procedure
Number of intra and/or postoperative complication
Time Frame: up to 30 days post procedure
Evaluation of the impact of the introduction of surgical navigation on the incidence of intra- and / or postoperative complications associated with surgical navigation
up to 30 days post procedure

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Investigators

  • Principal Investigator: Didier Mutter, MD, PhD, Service Chirurgie Digestive et Endocrinienne, Nouvel Hôpital Civil de Strasbourg

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

July 17, 2019

Primary Completion (Actual)

October 10, 2022

Study Completion (Actual)

October 10, 2022

Study Registration Dates

First Submitted

January 14, 2019

First Submitted That Met QC Criteria

January 14, 2019

First Posted (Actual)

January 16, 2019

Study Record Updates

Last Update Posted (Estimated)

January 8, 2024

Last Update Submitted That Met QC Criteria

January 4, 2024

Last Verified

January 1, 2024

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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